With the rear wheel and hub out of the way, it is much easier to access the clutch. Since I would have to wait for parts to put the rear wheel back on anyway, it seemed like a good time to tear into the clutch. I pulled off the motor dust cover by removing two of the three bolts on the clutch cover. Then I removed the rear motor bolt, and dropped the motor down at the rear. After removing the final clutch cover nut, and the clutch cable off the clutch arm, I could then try to pull off the clutch cover.

Normally the covers come right off, but this one felt stuck. After a little struggling, it finally came off. With it off, it was easy to tell why it was stuck - someone had put some sort of silicone gasket sealer on it. This area doesn't get a lot of oil seepage, and the cover has a metal lip on it. Gasket sealer isn't necessary. I'll scrape it off, and install a new rubber o-ring on the clutch cover.
With the cover off, I had access to the clutch. I used an air-powered impact wrench with a wobble extender to get the clutch nut off. It makes quick work of it, that's for sure. Next, I used the special clutch removal tool to get the clutch off. There are not many special tools that you need in Vespa repair work, but the handful of clutch and flywheel pullers are an absolute must-have.
On the left, you see the clutch in place on the motor with the pressure plate in the center. I removed that plate to get access to the retaining nut. The Super Sport clutch is fairly similar to those found on later other largeframe Vespas.
It is a fairly simple operation to get the pressure plate off the clutch. I simply used a flat blade screw driver to push the retaining clip towards the center of the plate, and pulled the plate off the clutch.